What chicken strips? Either someone scrubbed those in for you before the track day, or you really, really, should tuck those toes in and hang of more... Cuz that looks like you used the tire to the edge on one side, and very nearly on the other... That's not very far from hard parts scraping, and potentially flicking you at the scenery... But, none the less, you should be bloody proud if you did that on a first track day...
You'll be back out there, mark my words...